A:
Positive:
1 x 615060555 x 1230121113 x 473123565 x 946247569 x 1080951663 x 369852845 x 216197397 x 8315
Negative:
-1 x -61506055-5 x -12301211-13 x -4731235-65 x -946247-569 x -108095-1663 x -36985-2845 x -21619-7397 x -8315
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 61,506,055, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 61,506,055 | |
| -1 | -61,506,055 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 61,506,055.
Example:
1 x 61,506,055 = 61,506,055
and
-1 x -61,506,055 = 61,506,055
Notice both answers equal 61,506,055
With that explanation out of the way, let's continue. Next, we take the number 61,506,055 and divide it by 2:
61,506,055 ÷ 2 = 30,753,027.5
If the quotient is a whole number, then 2 and 30,753,027.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 61,506,055 | |
| -1 | -61,506,055 |
Now, we try dividing 61,506,055 by 3:
61,506,055 ÷ 3 = 20,502,018.3333
If the quotient is a whole number, then 3 and 20,502,018.3333 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 61,506,055 | |
| -1 | -61,506,055 |
Let's try dividing by 4:
61,506,055 ÷ 4 = 15,376,513.75
If the quotient is a whole number, then 4 and 15,376,513.75 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 61,506,055 | |
| -1 | 61,506,055 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 569 | 1,663 | 2,845 | 7,397 | 8,315 | 21,619 | 36,985 | 108,095 | 946,247 | 4,731,235 | 12,301,211 | 61,506,055 |
| -1 | -5 | -13 | -65 | -569 | -1,663 | -2,845 | -7,397 | -8,315 | -21,619 | -36,985 | -108,095 | -946,247 | -4,731,235 | -12,301,211 | -61,506,055 |
Here are some more numbers to try:
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